package hihocoder;
import java.util.BitSet;
import java.util.Scanner;

/**
 * 
 */

/**
 * @author zhongfang
 *
 */
public class 小Hi的烦恼 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner scanner=new Scanner(System.in);
		int N=scanner.nextInt();
		
		BitSet bitSet=new BitSet(N);
	}

}
